Dota 2 Calculator

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About

Create an item build and get detailed information on which items are most effective next.
Calculations are based on the chosen hero, levelled abilities, and items in the inventory.
For Dota 2 version 7.07b.

Instructions

First select a hero, and optionally set which abilties and talents are levelled.
You can also modify what kind of enemy the calculations should be based upon, by default it's another hero with 5 armor.
At the bottom of the page is the item table which shows for each item how much it will improve the hero's statistics, e.g. damage per second (DPS).
Use the + on the very left of an item row to add it to the inventory.
Items marked [upgrade] will upgrade existing items in your inventory, and are calculated accordingly with reduced effects and reduced cost.
To find an item by its name, use your browsers built-in search function which can usually be accessed by pressing ctrl+F.
To get the full text of an abbreviation hover your mouse over it.

Please Note

Most items and abilities with cooldown have their effects averaged over the cooldown, e.g. Phase Boots are calculated as having a small constant movement speed bonus, unless their duration is long enough like Mask of Madness or Orchid Malevolence.
Most abilities have no effect except for their mana cost, or might even have wrong effects (send me an e-mail if you would like a certain hero's abilities to be added properly).
Most incompatible items are not checked, be careful with those! For example, incompatible buffs and auras as well as multiple Maelstroms/Mjollnirs are handled as if they would all work together and stack additively.
A few items and abilities are approximated. For example, Echo Sabre's second attack is calculated as an additional instantaneous attack together with a maximum attack speed reduction, Bounty Hunter's Jinada is calculated differently from other crits and e.g. does not increase cleave damage, and Batrider's Sticky Napalm currently only increases attack damage.

Damage block, illusions, and creeps are not implemented (yet), except for Necronomicon.
May still contain some bugs.

Calculated Statistics

Attribs

Strength

Agility

Intelligence

HP/MP

HP

HP regen

MP

MP regen

Defense

Armor / Evasion

/ %

Physical resistance

%

EHP vs. physical

Magical resistance

%

EHP vs. magical

Misc

Movement speed

Spell damage amplification

%

Damage

Displayed damage

Attack speed

( attacks/s)

Enemy physical resistance

%

Physical DPS

Magical DPS

Pure DPS

Total DPS

Hero, Abilities & Talents

Hero:

Hero Level:

automatically set hero level depending on selected abilities and talents